Rolex. A Stainless Steel Automatic Wristwatch with Date and Bracelet Signed Rolex, Oyster Perpetual Date, Red Submariner, 660ft=200m, Superlative Chronometer, Officially Certified, Ref. 1680, Case No. 2'929'501, Circa 1971Cal. 1570 automatic movement, 26 jewels, black matte dial, luminous dot, baton and dagger numerals, luminous hands, center seconds, magnified aperture for date, tonneau-shaped water resistant-type case, black rotating bezel calibrated to 60 units, screw down crown, screw back, stainless steel Rolex Oyster link bracelet and deployant clasp, case, dial and movement signed39.5mm diam.